- Title
- Groundwater storage in Africa
-
+ The original author did not specify a license.
- Abstract
This 5 km resolution grid presents groundwater storage in Africa (in mm). This parameter was estimated by combining the saturated aquifer thickness and effective porosity of aquifers across Africa. For each aquifer flow/storage type an effective porosity range was assigned based on a series of studies across Africa and surrogates in other parts of the world. Groundwater storage is given in millimeters.
Detailed description of the methodology, and a full list of data sources used to develop the layer can be found in the peer-reviewed paper
available here: http://iopscience.iop.org/article/10.1088/1748-9326/7/2/024009/pdfThe raster and a high resolution PDF file are available for download on the website of British Geological Survey (BGS): http://www.bgs.ac.uk/research/groundwater/international/africanGroundwater/mapsDownload.html
- Pubblication Date
- July 21, 2017, 8:31 a.m.
- Type
- Raster Data
- Keywords
- Groundwater , Storage
- Category
- Groundwater
- Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations. It represents 98% of the world’s unfrozen freshwater.
- Regions
- Global , Africa
- Responsible
- gabin.archambault
- Group
- Theme 2: Groundwater
- Restrictions
- UNESCO-IHP was given the authorization to display on IHP-WINS some materials produced by the British Geological Survey. Permit Number CP17/019 British Geological Survey © NERC 2017. All rights reserved.
- Edition
- MacDonald, A M, Bonsor, H C, Ó Dochartaigh, B E, Taylor, R G. (2012). Quantitative maps of groundwater resources in Africa. Environmental Research Letters 7, 024009
- Language
- English
- Temporal Extent
- Dec. 31, 2009, 11 p.m. - Dec. 31, 2010, midnight
- Supplemental Information
This layer is part of a series of quantitative maps produced by the BGS. They are the first quantitative maps produced for Africa and are underpinned by dedicated case studies and systematic data/literature reviews. They are designed to show information at the continental, or regional scale (nominally at 1:20M).
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